GB/T 16927.4-2014 English PDF

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Basic data

Standard ID: GB/T 16927.4-2014 (GB/T16927.4-2014)
Description (Translated English): High voltage and high current test techniques -- Part 4: Definitions and requirements for test currents and measuring systems
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K40
Classification of International Standard: 29.240
Word Count Estimation: 112,181
Date of Issue: 5/6/2014
Date of Implementation: 10/28/2014
Quoted Standard: GB 1984; GB/T 7676.2-1998; GB/T 16927.1-2011; JJF 1059.1-2012
Adopted Standard: IEC 62475-2010, MOD
Regulation (derived from): National Standards Bulletin No. 9 2014
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the following: - Definition of terms used; - define the parameters and tolerances; - give Estimation for current measurement uncertainty; - the provision of a complete measurement system shall meet the requirements; - given measure

GB/T 16927.4-2014: High voltage and high current test techniques -- Part 4: Definitions and requirements for test currents and measuring systems

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High voltage and high current test techniques Part 4. Definitions and requirements for test currents and measuring systems ICS 29.240 K40 National Standards of People's Republic of China High voltage and high current test techniques - Part 4. Definitions and requirements for test currents and measuring systems Highvoltageandhighcurrenttesttechniques-Part 4. Definitions (IEC 62475.2010, MOD) Issued on. 2014-05-06 2014-10-28 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅴ 1 Scope 1 2 Normative references 1 3 Terms and definitions 3.1 Measurement System 1 3.2 Measurement System Components 2 3.3 Scale factor 3 3.4 Rating 3 Concerning the definition of dynamic characteristics 4 3.5 3.6 Uncertainty concerning the definition of 4 3.7 For definitions of the test measurement system 6 4 measuring system usage and performance verification program 6 4.1 Overview 6 4.2 Performance Test Cycle 7 4.3 Performance check Cycle 7 4.4 pairs recorded performance requirements 7 4.5 Operating Conditions 7 8 4.6 Uncertainty Test and test five pairs recognized measurement system and its components to claim 8 5.1 General requirements 8 5.2 --- scale calibration factor determined 9 5.3 Linearity test 12 Dynamic Characteristics 13 5.4 5.5 short-term stability of 13 15 5.6 Long-term stability 5.7 Ambient Temperature Effect 15 5.8 Effect adjacent loop current 15 17 5.9 Effect Software 5.10 uncertainty calculations 17 Uncertainty calculation (only rush current) 18 5.11 Time parameter measurements 5.12 interference test 20 Tolerance test 22 5.13 6 steady state DC current 22 6.1 Scope 22 23 6.2 Terms and Definitions 6.3 test current 23 Measuring 6.4 test current 23 Ripple measuring 6.5 magnitude 25 6.6 Test Procedure 26 Steady-state AC current 7 26 7.1 Scope 26 26 7.2 Terms and Definitions 7.3 test current 27 27 7.4 Current measurement test 7.5 Test Procedure 30 DC current 30 8 Short 8.1 Scope 30 30 8.2 Terms and Definitions 8.3 test current 31 Measuring 8.4 test current 31 8.5 Test Procedure 33 9 short alternating current 33 9.1 Scope 33 34 9.2 Terms and Definitions 9.3 test current 35 Measuring 9.4 test current 36 9.5 Test Procedure 39 Inrush current 10 39 10.1 Scope 39 10.2 Terms and definitions 39 10.3 Current Test 42 Measuring the test current 43 10.4 10.5 Test Procedure 45 11 high voltage insulation test of the current measurement 46 11.1 Scope 46 Measuring the test current 46 11.2 11.3 Test Procedure 47 12 standard measurement system 47 12.1 Overview 47 Periodic calibration standard measurement system 48 12.2 Appendix A (normative) Measurement Uncertainty 49 Annex B (informative) large current measurement uncertainty calculation example 56 Annex C (informative) step response measurement 85 Annex D (informative) convolution method to determine the step response dynamic performance measurement 88 Annex E (informative) specific waveform parameters limit the provisions of 91 Annex F (informative) temperature resistance element 93 Annex G (informative) Short RMS AC current is determined 94 Appendix H (informative) IEC and GB large current test sample 102 References 104

Foreword

GB/T 16927 "high-voltage and high-current test techniques" is divided into four parts. --- Part 1. General definitions and test requirements; --- Part 2. Measuring systems; --- Part 3. Definition and field test requirements; --- Part 4. Testing and measurement systems of current definitions and requirements. This section GB/T Part of 416,927. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses redrafted law revision adopted IEC 62475. define the current test and measurement systems. the 2010 "High Current test technology And requirements. " This part of IEC 62475.2010 technical differences and their reasons are as follows. --- Large current measurement system uncertainty calculation example has been revised (see Appendix B); --- Calculated in accordance with the practice of laboratory accreditation system measurement uncertainty of collecting large current laboratory measurements are given short-term deposit DC current measurement system uncertainty calculation example of the impact of the current measurement system and uncertainty calculation example (see B.4 and B.5); --- For the near loop current impact of the uncertainty evaluation, this section to correct the IEC 62475.2010 Original adjacent loop Error current Class B standard uncertainty component calculation formulas (see 5.8); --- For the near loop current impact test method, in order to more clearly describe the test method is more reasonable, this section will shunt It is adjacent to the loop current impact test as described in FIG. 9 (see 5.8, 9), with the 罗哥夫斯基 coil and core current transformers o Near the merger affect the test loop current as described in FIG. 10 (see 5.8 and 10), remove the IEC 62475.2010 in its original Luoge Fu Sharansky adjacent coil loop current impact test method; --- For the short-term AC current test, this section based on the actual situation of the industry, an increase of related terms (see 9.2.1,9.2.2,9.2.4, 9.2.5,9.2.6), while the new parameters proposed tolerance requirements (see 9.3), and increases in short-circuit breaker breaking Appendix G Determining a current example (see G.9) and limiting fuse breaking current determining sample (see G.10). This part of IEC 62475.2010 clause above main difference has been involved in a single vertical line through its outer margin position (|) Were marked. This section also made the following editorial changes. --- Fig. 3 calibration uncertainty components illustrated in Formula bad place to be amended accordingly; --- 18 index of the impact of the current waveform shown at the incorrect formula be amended accordingly; --- Table B.4 linearity test results at the incorrect formula be amended accordingly. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. This part is proposed by the China Electrical Equipment Industrial Association. This part of the National high-voltage test technique and insulation with Standardization Technical Committee (SAC/TC163). This section is responsible for drafting units. China Electric Power Research Institute, Xi'an High Voltage Apparatus Research Institute Co., Ltd. Participated in the drafting of this section. Kunming Institute of Electrical, Mechanical Industry fifth (Xi'an) Measurement and Testing Center station, the national high-voltage electrical appliances Quality Supervision and Inspection Center, the National Insulator arrester Quality Supervision and Inspection Center, high-voltage electrical machinery industry product quality inspection center (Shen Yang), Xi'an Electric Transformer Co., Ltd., Shenyang Transformer Research Institute Co., Ltd., Tsinghua University, Xi'an high-voltage electrical shares Parts of the company, New Northeast Electric Group Co., high-voltage switch, the high level Group Ltd., Shenzhen Institute of Electrical Sciences, Beijing Huatian electromechanical RESEARCH Study Limited, Suzhou Huadian Electric Co., Ltd., Sichuan Electric Power Research Institute, Electric Power Research Institute, Shaanxi, Hubei Power Of the company, Hunan Electric Power Company. The main drafters of this section. Lei Min, Choi Dong, Li Qian, any steady column, Wang, Tian Enwen, Yuan Yuan, Yang Chunyan, Peng Wei, Wang Jiansheng, Zhao Wei, Wang Ting, Li He. The drafters of some of the participants. Zhou Qiongfang, Yang left Lvjian Yu, Chen Kui, ZHOU Yuan-xiang, Yan Jinghui Zhang Meng, Li Xinchun, Zhao Hongfei, Zhang Jianxin, Zhaojian Pei, Zhang Dongning, Deng Yonghui, Xiaomin Ying, Ai Xiaoyu Yu Qing, Jiang Bo, Po Road, Lu Jun, Li Xigui. High voltage and high current test techniques - Part 4. Definitions and requirements for test currents and measuring systems

1 Scope

This section GB/T 16927 specifies the following. --- Definitions of the terms used; --- Define parameters and tolerance; --- Given the large current method of estimating uncertainty of measurement; --- Provision of a complete measurement system shall meet the requirements; --- Give recognition method and verification method component measurement system; --- Given measuring system meets the requirements of this part of the program, including the measurement uncertainty limits. This section applies to high current test and measurement of high voltage and low-voltage equipment. Suitable current types are. steady direct current, short straight Current flow (such as large-capacity DC test), steady-state AC current, short alternating current (such as large-capacity AC test) and the inrush current. 100A is greater than the current test can be used in this section, refer to this section may appear less than 100A current in these experiments. Note. This section also applies to the current measurement fault detection, such as lightning impulse test.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB 1984 high voltage AC circuit breaker (GB 1984-2003, IEC 62271-100.2001, MOD) GB/T 7676.2-1998 Direct acting indicating analogue electrical measuring instruments and their accessories Part 2. Special ammeter and voltmeter Specific requirements (IEC 60051-2. 1984, IDT) GB/T 16927.1-2011 high voltage test techniques - Part 1. General definitions and test requirements (IEC 60060-1.2010, MOD) JJF1059.1-2012 Evaluation and Expression of Uncertainty in Measurement (ISO /IEC Guide98-3.2008)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Measurement System 3.1.1 Measurement System measuringsystem The entire apparatus for measurement. Software used to obtain or calculate measurement results are also part of the system of measurement. Note 1. The high-current measuring system typically includes the following components. --- Conversion means includes coupling means connecting the access terminal or current loop and current loop, and a ground connection; --- Output switching means connected end-to-measuring instrument (along with attenuation, impedance matching and terminal or network) transmission system; --- Measuring instrument with power cord; ......

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